Wikipedia
Paradiplomacy is international relations conducted by subnational or regional governments on their own, with a view to promoting their own interests. With globalisation, non-state regions play an increasingly influential international role. Regions, federal states, provinces and cities seek their way to promote trade, investments, cooperation and partnership in a long list of subjects and account for a significant part of today’s cross-borders contacts. This trend raises new interesting questions concerning Public International Law and opens a debate on the future of the state system that has provided the grounds for the international political order in the last centuries.
Although the term "paradiplomacy" would be casually employed in the 1980s, it was introduced into the academic debate by the Canadian scholar Panayotis Soldatos. The American author Ivo Duchacek further developed the concept and became one of its main theoreticians. Other current denominations for paradiplomacy and related concepts are: “multilayered diplomacy”, “substate diplomacy” and “intermestic affairs” . This latter concept expresses a growing trend to the internationalization of domestic issues, which takes local and regional concerns to the centre stage of international affairs.
The intention of local governments is thus to promote development by exploring complementarity with partners facing similar problems, with a view to joining forces to arrive at solutions more easily. In addition, they explore opportunities alongside international organizations that offer assistance programs for local development projects.